保存されている複数のバージョンのうち最新のburpを起動する。

burp.bat

@if(0)==(0) echo off
rem 引数無しで起動すると C:\Program Files (x86)\Burp\ に保存されている複数のburpから最新のburp*.jarを実行する。
rem 引数 update を付与して起動すると、PortSwigerから最新のフリー版のburpをダウンロードしC:\Program Files (x86)\Burp\ に保存する
setlocal
setlocal ENABLEDELAYEDEXPANSION
set burp=0
if /I "%1" == "update" goto UPDATE
for %%a in ( "C:\Program Files (x86)\Burp\*.jar" ) do (
    set x=%%~na
    if !burp! lss !x! set burp=!x!
)
echo !burp!
java -jar -Xmx1024m "C:\Program Files (x86)\burp\!burp!.jar
GOTO :eof
:UPDATE
cscript.exe //nologo //e:jscript "%~f0" %*
goto :eof
@end


var log = (function(){
    if( /\\cscript.exe$/i.test( WScript.FullName ) ){
        return function(){
            var s = "";
            for( var i = 0; i < arguments.length; i++ ){
                if( i ) s += " ";
                s += arguments[ i ];
            }
            WScript.Echo( s );
        };
    }
    return function(){};
})();

var url = "https://portswigger.net/DownloadUpdate.ashx?Product=Free";


function download( url, dir ){
    var xhr, stream, filename = "download." + ~~new Date() + ".bin";
    try{
        log( "Trying to download:" + url );
        xhr = new ActiveXObject( "MSXML2.ServerXMLHTTP" );
        xhr.open( "GET", url, false );
        //xhr.setProxy( 2, "localhost:8888", "" );
        //xhr.setOption( 2, 13056 );
        xhr.setRequestHeader( "If-Modified-Since", "Thu, 01 Jun 1970 00:00:00 GMT");
        xhr.send( null );
        if( xhr.status !== 200 ){
            WScript.Echo( "fail to download. status=" + xhr.status + " " + xhr.statusText );
            return "";
        }
        log( "Succeed to download." );
        var cd = xhr.getResponseHeader( "Content-disposition" );
        if( cd ){
            var m = /^\s*attachment;\s*filename=(.*)$/.exec( cd );
            if( m && m[ 1 ] ){
                filename = ( m[ 1 ] + "" ).replace( /\\\/\:\*\?\"\<\>\|/g, "_" );
            }
        }
        log( "filename is " + filename );
        log( "copying to " + dir );
        stream = new ActiveXObject( "ADODB.Stream" );
        stream.Open();
        stream.Type = 1; // binary
        stream.Write( xhr.responseBody );
        stream.SaveToFile( dir + "\\" + filename, 2 ); // 2 is overwrite
        stream.Close();
        return filename;
    }catch( e ){
        WScript.Echo( "Error:" + e.message );
    }
    return "";
}

function update(){
    var shell = new ActiveXObject( "WScript.Shell" );
    var tmp = shell.ExpandEnvironmentStrings( "%TEMP%" );
    var filename = download( url, tmp );
    var fso = new ActiveXObject( "Scripting.FileSystemObject" );

    if( filename ){
        try{
            fso.CopyFile( tmp + "\\" + filename, "C:\\Program Files (x86)\\burp\\", false );
            WScript.Echo( "Suceed to update:" + filename );
            fso.DeleteFile( tmp + "\\" + filename );
        }catch( e ){
            WScript.Echo( "failed to copy file to Program Files folder. " + e.message );
        }
    };
}

(function(){
    for( var i = 0; i < WScript.Arguments.length; i++ ){
        if( WScript.Arguments.Item( i ) === "update" ){
            update();
            break;
        }
    }
})()